September 19, 2019, 01:05:44 AM
Forum Rules: Read This Before Posting


Topic: Cleaning out a sunscreen bottle  (Read 10647 times)

0 Members and 1 Guest are viewing this topic.

Offline lord_raider

  • Very New Member
  • *
  • Posts: 2
  • Mole Snacks: +0/-0
Cleaning out a sunscreen bottle
« on: August 14, 2013, 03:40:04 AM »
Hello,

I'm trying to clean out a sunscreen bottle but it is not that easy :).
It keeps giving a sunscreen smell.
I tried Washing soda en warm water and let it rest for 10 hours.
I tried Vinegar, Dishwasher cleaning soap ...
It keeps giving the new contents a sunscreen taste and smell.

What product or combination can dissolve or remove the sunscreen odour completely.
There has to be something chemical that neutralizes it I suppose  ???

Thx for any tips or help

Offline Archer

  • Chemist
  • Sr. Member
  • *
  • Posts: 1001
  • Mole Snacks: +85/-20
  • Gender: Male
Re: Cleaning out a sunscreen bottle
« Reply #1 on: August 14, 2013, 03:54:33 AM »
The contents of the bottle have probably leached into the plastic over time. There is unlikely anything you can do to completely remove it.

“ I love him. He's hops. He's barley. He's protein. He's a meal. ”

Denis Leary.

Offline lord_raider

  • Very New Member
  • *
  • Posts: 2
  • Mole Snacks: +0/-0
Re: Cleaning out a sunscreen bottle
« Reply #2 on: August 14, 2013, 03:59:39 AM »
That was also what I was fearing :).
The annoying thing is the new contents absorbs it from the plastic again.

It is indeed an 4 year old bottle.

Offline Arkcon

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7360
  • Mole Snacks: +533/-146
Re: Cleaning out a sunscreen bottle
« Reply #3 on: August 14, 2013, 07:40:18 AM »
Also, you mentioned "taste", which implies you intend to use a bottle that previously held an external product for internal use.  You shouldn't do that.  The grades of plastic used for food use are different for other product use.  Even if you caught one of these sunscreen bottles before the assembly line filled it with sunscreen, you would likely still find liquids stored in it tainted with something extracted from the plastic wall.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline Corribus

  • Chemist
  • Sr. Member
  • *
  • Posts: 2724
  • Mole Snacks: +438/-20
  • Gender: Male
  • A lover of spectroscopy and chocolate.
Re: Cleaning out a sunscreen bottle
« Reply #4 on: August 14, 2013, 09:52:58 AM »
As the above poster mentioned, fragrances and other substances from the contents bottle have likely been scalped by the plastic.  The only thing you can do is try to reverse the process.  If it's really important, I would fill the bottle with a suitable matrix - probably something nonpolar like vegetable or mineral oil - and let it sit in a warmish place for a few days or up to a week. Some of the whatever partitioned into the plastic should partition back into the oil. You can repeat this with vinegar, vodka (or other neutral spirit) and water (separately) to cover all your bases. You may never get totally rid of the scent if the bottle was four years old but this procedure will likely help to some degree.

(Without knowing what was scalped, it's hard to guess the best matrix to use. But most likely the bottle is polyethylene or something which means the migrant is probably something reasonably nonpolar, which is why I suggest either an oil or high % ethanol as a matrix.)

It does, as Arkcon mentions, beg the question of why you're using a sunscreen bottle to store something you're consuming orally. Sure you can find other containers for your food...
« Last Edit: August 14, 2013, 10:14:24 AM by Corribus »
What men are poets who can speak of Jupiter if he were like a man, but if he is an immense spinning sphere of methane and ammonia must be silent?  - Richard P. Feynman

Offline magician4

  • Chemist
  • Full Member
  • *
  • Posts: 567
  • Mole Snacks: +70/-11
Re: Cleaning out a sunscreen bottle
« Reply #5 on: August 14, 2013, 03:31:21 PM »
what are we talking here? cleaning a highly contaminated plastic ,doted with adsorbed materials definitively not meant for food use, to food-use standards ?

come on people....

if there is no very very veeeeeery special reason to do so: this is completely futile, a waster of time and money, and by no means sustainable


a plastic bottle sunscreen size goes at 10 cnt-US , if that much...


regards

Ingo

There is a theory which states that if ever anybody discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened.
(Douglas Adams)

Offline Arkcon

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 7360
  • Mole Snacks: +533/-146
Re: Cleaning out a sunscreen bottle
« Reply #6 on: August 14, 2013, 03:51:26 PM »
Well, like other threads in the ... other category, this thread provides us with a chance to talk about these sorts of objections, which many noobs don't seem aware of.  So practicality aside, its a useful thing for people to learn.  If you search the forum on the topic of "washing out", you'll see lots of people are trying to reuse a variety of containers ... mostly pointlessly.
Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.

Offline magician4

  • Chemist
  • Full Member
  • *
  • Posts: 567
  • Mole Snacks: +70/-11
Re: Cleaning out a sunscreen bottle
« Reply #7 on: August 14, 2013, 04:11:42 PM »
Quote
(...) this thread provides us with a chance to talk about these sorts of objections,(...)

nullum esse librum tam malum...
(Pliny the Younger, Epistles 3.)

yeah, I see your point

just felt that somebody should raise a voice of reason in this topic, nevertheless


regards

Ingo
There is a theory which states that if ever anybody discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened.
(Douglas Adams)

Offline Archer

  • Chemist
  • Sr. Member
  • *
  • Posts: 1001
  • Mole Snacks: +85/-20
  • Gender: Male
Re: Cleaning out a sunscreen bottle
« Reply #8 on: August 14, 2013, 05:10:10 PM »
We are talking about equilibrium of distribution between the solid phase of the plastic and a liquid to "wash" it.

You could wash it 1000 times, even if the plastic were a finely divided powder, and still the contamination could remain. How could you tell if it was a success?

Put it this way, if a bottle contained a known carcinogen would you risk re-using it after cleaning for your toddlers milk?

I agree with Ingo, best throw it out and buy a clean bottle.
“ I love him. He's hops. He's barley. He's protein. He's a meal. ”

Denis Leary.

Sponsored Links